* Activity Guide on Planet Earth * * World Population Day : 11th July, 2010 *
* Chlorine and Drinking Water Treatment
* Is CO2 The Only Climate Altering Pollutant
* Explosive Earth
* Carbon Reduction Plans by Some Major Polluters
* Obesity: Is it a killer?
* Biological Diversity
(The very stuff of Life)
* Biological Diversity
(The web of life)
* Protecting the Ozone Layer
* Some Facts
* Amazing Adaptations
Chandigarh Weather Forecast, India
QuestionNo : 1
Name the process in which a harmful chemical enters the food chain and gets concentrated at each level in the food chain.
concentration
biomagnification
expansion
pollution
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